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Human Body & Health

Grade 5 · Building confidence · 8 questions · Version PG-V8RB4I-1RJ2

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1.What is the immune system's job?
2.Why does heart rate rise during exercise?
3.Which cells carry oxygen?
4.How do vaccines help?
5.How do lungs and circulation interact?
6.Which system sends messages through nerves?
7.What do kidneys remove from blood?
8.What maintains stable internal conditions?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 18
  1. What is the immune system's job?Defend against harmful pathogens
  2. Why does heart rate rise during exercise?Muscles need oxygen and nutrients faster
  3. Which cells carry oxygen?Red blood cells
  4. How do vaccines help?They prepare immunity to recognize a pathogen
  5. How do lungs and circulation interact?Lungs add oxygen to blood, which carries it to cells
  6. Which system sends messages through nerves?The nervous system
  7. What do kidneys remove from blood?Wastes and extra water
  8. What maintains stable internal conditions?Homeostasis

Worked example

Connect a structure to its function and explain how body systems work together.

Common mistake

Naming an organ without explaining its system role.

Helpful hint

Trace what enters, changes, and leaves the system.